Related Questions

Fluorine is not a constituent of
A Freon
B Chloroform
C Teflon
D Fluorocarbons
By which of the following processes are metals of high reactivity extracted from purified molten ore?
A Reduction by an appropriate reducing agent
B Roasting
C Electrolysis
D Calcination
নিচের কোন কার্যকরী মূলক (functional group) -এর সক্রিয়তা (reactivity ) সবচেয়ে বেশি?
A -S-H   
B  >C=O   
C    -C≡N     
D - OC-OH
Which of the following is the correct order of reactivity of metals?
A Zn > Mg > Fe > Cu > Ag
B Zn > Mg > Fe > Ag > Cu
C Mg > Zn > Fe > Ag > Cu
D Mg > Zn > Fe > Cu > Ag
SN1 বিক্রিয়ায় বিভিন্ন অ্যালকাইল হ্যালাইডের সক্রিয়তা ক্রম হলো (The order of reactivity of various alkyl halides towards SN1 reaction is -)
A 3° > 2° > 1°
B 1° > 2° > 3°
C 1° > 3° > 2°
D 3° > 1° > 2°
A person travels I2 km due north, then 15 km due east after that I5km due west and then 18 km due south. How far B she from the starting point?
A 6km
B 10km
C 33km
D 60km
X lives 4 kilometers due west of Y's house. Z lives 6 kilometers due north of Y's house and 4 kilometers due west of T's house. What is the straight-line distance in kilometers from X's house to T's house?
A 4
B 5
C 8
D 10
A's office is 4 km due east of B's office . C's office is 6 km due north of B's office and 4 km due east of D's office. What is the straight-line distance, in km, from A's office to D's?
A 4
B 5
C 8
D 10
Jamil lives 4 kilometers due west of Rehana's house. Ajit lives 6 kilometers due north of Rehana's house and 4 kilometers due west of john's house. What is the straight line distance in kilometers from Jamil's house to John's house?
A 4
B 5
C 8
D 10
Rakid lives 4km due west of Faisal's house. Asif lives 6km due north of Faisl's house and 4km due west of Hamed's house. What is the minimum distance from Rakib's house to Hamed's house?
A 4km
B 5km
C 8km
D 10km

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